night-night time

we were on our way out the door today to go watch Jon play football. I asked Carson to go get the 'cars' that he wanted to take with him. he quickly ran upstairs to his room. A few minutes passed and he had not yet returned. I began to walk up the stairs and heard him singing. I proceeded to open his bedroom door where I saw six of his cars lined up in his rocking chair. He was 'rubbing' their backs and singing the Gospel song. When he saw me he said, 'Shhhh...mamma...night...night time.' He then proceeded to shut the door on me saying, 'bye, bye mama!'